class AddUsersFb < ActiveRecord::Migration
	def self.up
	  add_column :users, :fb_user_id, :integer
	  add_column :users, :email_hash, :string
	  #if mysql
	  execute("alter table users modify fb_user_id bigint")
	end

	def self.down
	  remove_column :users, :fb_user_id
	  remove_column :users, :email_hash
	end

end
